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September 9,2015

2015-August US Patent Applications: Sol-Gel

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20150240411

NANOFIBER STRUCTURE WITH IMMOBILIZED ORGANIC SUBSTANCE AND THE METHOD OF ITS PREPARATION

The invention concerns a nanofiber structure with immobilized organic agens that consists of silica nanofibers whose surface was modified with aminoaikyialkoxysilane and of subsequently immobilized organic agens. The invention also concerns a method of preparation of the nanofiber structure with immobilized organic agens, while silica nanofibers are prepared by electrostatic spinning from the initial sol synthesized by a sol-gel method from tetraalkoxysilane, heat-treated and their the surface modified by a solution of aminoaikyialkoxysilane and organic agens is then immobilized on the modified surface of the nanofibers.

20150238935

METHOD FOR SYNTHESIZING SILVER NANOPARTICLES ON TiO2 USING HYBRID POLYMERS

Hybrid TiO2 nanostructures with engineered morphologies (flakes, spheres and buds) supporting Ag nanocrystals were synthesized based on cooperative sol-gel chemistry of either titanium iso-propoxide or N-butoxide and assembled with polyvinyl alcohol and polyethylene glycol.

Methods of manufacturing nano-engineered carbon materials, such as carbon aerogels and carbon xerogels, and methods of manufacturing precursor solutions and sol-gels for making the same are provided. A method for manufacturing a precursor solution comprises programmed-addition of a cross-linking agent to a component mixture comprising a resorcinol compound. A method for manufacturing a sol-gel comprises subjecting a precursor solutions to at least one heat treatment. Methods for producing nano-engineered carbon materials from precursor solutions and sol-gels are also provided. Methods for using the nano-engineered carbon materials are also disclosed. The resulting nano-engineered carbon materials can be useful in a range of products including, supercapacitor applications, high-surface-area electrodes, fuel cells, and desalination systems.

20150232413

AMINO ALCOHOL TREATMENT FOR SOL-GEL CONVERSION COATINGS, SUBSTRATES INCLUDING THE SAME, AND METHODS OF MAKING THE SUBSTRATES

An article includes a substrate, a sol-gel conversion coating on at least a portion of the substrate, and a treatment layer on at least a portion of the sol-gel conversion coating. The treatment layer includes an amino alcohol. A method of manufacturing the article includes applying a partially cured sol-gel composition to at least a portion of a substrate, at least partially drying the partially cured sol-gel composition to form the sol-gel conversion coating, applying a solution including an amino alcohol to at least a portion of the sol-gel conversion coating, and at least partially drying the solution including the amino alcohol.

The present invention is drawn to an optical article comprising: (a) a transparent optical polymer substrate, (b) a transparent intermediate abrasion-resistant coating obtained from at least one epoxysilane by a sol-gel process, and (c) a transparent outer coating comprising a polythiolene matrix obtained by curing a liquid monomer mixture comprising at least one polyfunctional thiol and at least one polyfunctional allyl monomer, said cured polythiol-ene matrix having a glass transition temperature comprised in the range from 40oC. to 70oC. and a thickness from 3.5 micron to less than 10 micron. It is also drawn to a method for preparing such an optical article and to a method for repairing scratches in such an optical article by heating.

20150219734

POROUS AND STRUCTURED MATERIALS FOR DYNAMIC NUCLEAR POLARIZATION, PROCESS FOR THEIR PREPARATION AND NMR ANALYSIS METHOD

The present invention concerns materials consisting in a porous and structured network, this network being at least in part formed by Si atoms, or Si atoms and metal atoms, linked to each other's via siloxy bonds, the amount of radical ranging from 0.50 to 0.03 mmol of radical per gram of material, and in that the network is formed with a sol-gel step using an organosilane for the introduction of the organic molecules allowing their regular distribution within the porous structured material. The invention also concern a process for the preparation of such material and a method of analysis by Nuclear Magnetic Resonance (NMR) of an analyte wherein it uses dynamic nuclear polarization generated with a material according to the invention.